HAWQ-1067. Fix plr-hawq default install path to match HAWQ's default.
HAWQ-1067. Fix plr-hawq default install path to match HAWQ's default.

wengyanqing/incubator-hawq,jianlirong/incubator-hawq,huor/incubator-hawq,huor/incubator-hawq,stanlyxiang/incubator-hawq,jianlirong/incubator-hawq,stanlyxiang/incubator-hawq,stanlyxiang/incubator-hawq,outofmem0ry/incubator-hawq,wengyanqing/incubator-hawq,lavjain/incubator-hawq,huor/incubator-hawq,outofmem0ry/incubator-hawq,huor/incubator-hawq,jianlirong/incubator-hawq,lavjain/incubator-hawq,lavjain/incubator-hawq,lavjain/incubator-hawq,wengyanqing/incubator-hawq,stanlyxiang/incubator-hawq,outofmem0ry/incubator-hawq,wengyanqing/incubator-hawq,stanlyxiang/incubator-hawq,jianlirong/incubator-hawq,lavjain/incubator-hawq,wengyanqing/incubator-hawq,stanlyxiang/incubator-hawq,outofmem0ry/incubator-hawq,jianlirong/incubator-hawq,wengyanqing/incubator-hawq,jianlirong/incubator-hawq,lavjain/incubator-hawq,huor/incubator-hawq,outofmem0ry/incubator-hawq,huor/incubator-hawq,lavjain/incubator-hawq,lavjain/incubator-hawq,wengyanqing/incubator-hawq,stanlyxiang/incubator-hawq,huor/incubator-hawq,jianlirong/incubator-hawq,outofmem0ry/incubator-hawq,jianlirong/incubator-hawq,outofmem0ry/incubator-hawq,wengyanqing/incubator-hawq,outofmem0ry/incubator-hawq